docs: def post_user_bookmarks_unsave(self, id, **data):
          """
          POST /users/:id/bookmarks/unsave/
          Removes the specified bookmark from the event for the user. Returns ``{"deleted": true}``.
          A user is only authorized to unsave his/her own events.
          error NOT_AUTHORIZED
          You are not authorized to unsave an event for this user.
          error ARGUMENTS_ERROR
          There are errors with your arguments.
          """
          
          return self.post("/users/{0}/bookmarks/unsave/".format(id), data=data)